Between 2009 and 2017, the average price per square foot of a Harlem townhouse increased by 171 percent – from $237 to $642 per square foot. View Full Caption

DNAinfo/Gustavo Solis

HARLEM — Townhouse prices are rising three times faster in Harlem than in the rest of Manhattan, according a recent analysis of home sales, and at this rate buying a place in the neighborhood could cost as much as it does in Downtown and Midtown in the next decade.

“At an average yearly growth rate of 15% compared to 5% for Manhattan, Harlem could close the price gap by